CN202124210U - Packaging material - Google Patents

Abstract

The utility model provides a packaging material which can be suitably bended along a plurality of directions when keeping the buffering property so as to easily wrap and package a packaged object. The packaging material comprises a plurality of internal spaces (S) and a plurality of filling parts (13), wherein foaming grains (20) are filled into the internal spaces (S) to form the filling parts (13); thermoplastic resin foaming grains are filled in the filling parts (13) in a mode of forming a valley line (15) between a filling part (13) and an adjacent filling part (13); and a contour line (18) of each filling part (13) is approximately in an octagon shape and is used for connecting a borderline (16) and the valley lines (15) between the filling part (13) and four filling parts (13), and the borderline (16) is arranged between the filling part (13) and each of four connecting parts arranged at the periphery of the filling part (13).

Description

Packing

Technical field

The utility model relates to a kind of inside of sheeting in face-off and is filled with the packing that expanded particle forms, and relates to the packing that can packed article wrapped up aptly and pack.

Background technology

In the past, the laminar packing that used expanded particles such as being filled with expanded particle in inside to form are packed packed article.The a pair of cloth material that this packing are sewed up with periphery as bag and within it portion is filled with expanded particle.

Particularly; Do not setover in order to make the expanded particle that is filled in the bag inside; For example proposing (for example has this packing; With reference to patent documentation 1): the internal separation of bag is become a plurality of osed top coffins, and equally spaced alignment arrangements has filling part in this enclosure space, in this filling part, is filled with expanded particle.

In addition, as the technology of using this expanded particle, for example propose to have buffering shown in Figure 6 (cushion) material.This padded coaming is a pair of cloth material 61,61 to be sewed up and the formation bag along periphery, and in interior bonds, be provided at predetermined intervals the connecting part 62,62 of a plurality of circles ...The a plurality of inner spaces that surrounded the cloth material 61,61 that forms by 4 connecting parts 62 communicate with each other.Be filled with expanded particle in each inner space, be formed with a plurality of filling parts 65.Like this, at four jiaos of each filling part 65 configuration connecting parts 62, become the state that inside is connected between filling part 65 and 4 filling parts 65 being adjacent.The expanded particle that is filled in the filling part 65 can move to any one (for example, with reference to patent documentation 2,3) in 4 adjacent filling parts 65.

Patent documentation 1: the special fair 07-121756 communique of Japan

Patent documentation 2: TOHKEMY 2009-001929 communique

Patent documentation 3: TOHKEMY 2008-212406 communique

The utility model content

The problem that utility model will solve

When using the packing of patent documentation 1, because alignment arrangements has the filling part of the rectangle of having filled expanded particle, these packing of line bending that therefore can easily arrange along the filling part of rectangle are packed packed article.But when the diagonal line bending packing desired along the filling part of these rectangles, because bending line is positioned on the enclosure space that is filled with expanded particle, so expanded particle almost can not move.Thereby, when using patent documentation 1 described packing, be difficult for packing with the mode of wrapping up packed article along diagonal line bending packing.

In view of this point, can think and preferably use padded coaming shown in Figure 6 to pack.But; Because the sort buffer material is not also considered bending property; Though therefore can be reluctantly along the boundary line L1 bending padded coaming between the filling part, be not easy thing along diagonal L 2 (making roughly 45 ° line of boundary line L1 rotation) this padded coaming of bending of filling part.

As a result, when the parcel packed article, packing receive the restriction of the bending easness of packing with respect to the position of packed article.In addition, when desiring the packed article of package shape complicacy, can not contrast its shape and come the bending packing, and sometimes can not be with the packed state packing packed article of hope.

The utility model is in view of above problem, thus its purpose be to provide a kind of can be when keeping resiliency along a plurality of directions aptly bending easily wrap up and pack the packing of packed article.

The scheme that is used to deal with problems

After concentrating on studies repeatedly, the contriver obtains this new opinion: when packing are provided with a plurality of filling part; The shape of this filling part and connecting portion is bigger to the influence of bending property; Through the shape that this shape is set to be scheduled to, can improve the bending property of packing significantly.

The utility model is based on this neodoxy that the contriver obtains; The packing of the utility model comprise a plurality of inner spaces and a plurality of filling part; Between the sheeting that surrounds by 4 adjacent these connecting parts, form this inner space through a plurality of connecting parts that are provided at predetermined intervals island; This connecting part is used to link this sheeting of face-off, and the filling-foam particle forms this filling part in above-mentioned inner space, it is characterized in that; In above-mentioned filling part; To form the mode of valley line at this filling part and between adjacent to the above-mentioned filling part of this filling part, be filled with above-mentioned expanded particle, the outline line of above-mentioned filling part be shaped as roughly octagon; This outline line is to link boundary line and above-mentioned filling part and outline line adjacent to above-mentioned valley line between 4 above-mentioned filling parts of this filling part, and this boundary line is the boundary line between this filling part and 4 the above-mentioned connecting parts on every side that are disposed at this filling part.

According to the utility model, each filling part of packing is filled expanded particle in a plurality of inner spaces that surrounded by 4 adjacent connecting portions, and filling part becomes heaves part, and connecting part becomes concave portion, and, between filling part, form valley line.Therefore in addition,, can make expanded particle, move in the inner space of 4 filling parts around it according to the load that acts on filling part because that each inner space is connected with each other is logical.

And the valley line of packing is on the same straight line, and each valley line caves in into wire.Thus, can be easily along valley line bending packing.In addition; When the boundary line between filling part and connecting part, promptly with respect to valley line during with the line bending packing of 45 ° of intersections; Because filling part is heaved under the effect of bending power; And outline line be shaped as roughly octagon, so this flared is divided the concave portion that gets into easily as connecting part.

Like this, even desiring along under the situation of arbitrary line bending packing of valley line or boundary line, its bending property is good, no matter packed article can both easily wrapped up and pack to its direction how.In addition, even complex-shaped packed article also can easily wrap up and pack.

Here; " roughly octagon " described in the utility model is meant that profile is octagon, perhaps approaching octagonal shape; As long as under facing, be roughly octagon in appearance, the outline line that then constitutes its profile and become each limit is not only linearity, also can be curve.

More preferably; The roughly octagon that is shaped as as if above-mentioned outline line; Then connecting part can be enumerated square (rhombus), circle etc., as long as the flared of filling part is divided the concave portion that gets into connecting part easily when along boundary line bending packing, does not then have special qualification.

But; In the packing of the utility model; Preferably, when the diameter of the inscribed circle of the interior periphery that is connected to above-mentioned connecting part is made as center-to-center distance between the above-mentioned inscribed circle of D, adjacent above-mentioned connecting part when being made as L, satisfy the relation of 0.25≤D/L≤0.4.

According to the utility model, when connecting part is when satisfying the shape of above-mentioned relation, along the bending packing easily of line arbitrarily.But when this relation during for D/L＜0.25, the size of connecting part diminishes, and the part of heaving of filling part becomes and is difficult to get in the concave portion of connecting part.On the other hand, when this relation during for D/L＞0.4, the size of connecting part becomes excessive, can not obtain good resiliency.

Here, for example when connecting part when being circular, in be connected to the periphery of connecting part circle diameter D be equivalent to the diameter of its circular connecting part.In addition, for example when connecting part was rectangle (rhombus), other shapes, above-mentioned circle diameter D was equivalent to and has the circle diameter that connects in the periphery (that is, comprising above-mentioned boundary line at interior periphery) of the connecting part of these shapes.

And, more preferably, when the thickness of above-mentioned filling part is made as t, satisfy the relation of 0.25≤t/L≤1.Because satisfying should relation, therefore bending packing more easily, thus pack packed article easily.But,,, therefore can not obtain good resiliency because the thickness of filling part is insufficient when this relation during for t/L＜0.25.On the other hand, when this scope was t/L＞1, the part of heaving of filling part was excessively heaved when bending, and becoming is difficult to get in the concave portion of connecting part.

In addition, in the packing of the utility model, preferably, the outline line of filling part is shaped as roughly octagon.Since the outline line of filling part be shaped as roughly octagon, so the flared of filling part is divided in the concave portion that gets into connecting part easily.

The effect of utility model

According to the utility model, can be along the bending aptly of a plurality of directions when keeping resiliency, thus can easily wrap up and pack packed article.

Description of drawings

Fig. 1 is the scheme drawing of packing of the 1st embodiment of the utility model, (a) is the block diagram of packing, (b) is the section-drawing along the A-A line intercepting of (a), (c) is the section-drawing along the B-B line intercepting of (a);

Fig. 2 is used to explain along packing the schematic perspective view of the method for packed article with the line bending of valley line almost parallel packing shown in Figure 1; (a) being the block diagram that is used to explain packed state, (b) is the block diagram of dogleg section that has amplified the packing of (a);

Fig. 3 is used to explain along packing the schematic perspective view of the method for packed article with the line bending of boundary line almost parallel packing shown in Figure 1; (a) being the block diagram that is used to explain packed state, (b) is the block diagram of dogleg section that has amplified the packing of (a);

Fig. 4 is the skeleton diagram that is used to explain the manufacturing approach of packing shown in Figure 1, (a) is the birds-eye view of the packing before filling thermoplastic resin's expanded particle, (b) is the figure that is used to explain the method for filling thermoplastic resin's expanded particle;

Fig. 5 is the illustrative diagram of packing of the 2nd embodiment of the utility model, (a) is the block diagram of packing, (b) is the birds-eye view of the packing before filling thermoplastic resin's expanded particle;

Fig. 6 is the schematic perspective view of padded coaming in the past.

The specific embodiment

Below, based on the packing of 2 embodiment explanation the utility model.Fig. 1 is the illustrative diagram of packing of the 1st embodiment of the utility model, (a) is the block diagram of packing, (b) is the section-drawing along the A-A line intercepting of (a), (c) is the section-drawing along the B-B line intercepting of (a).

In addition; Fig. 2 and Fig. 3 are used to explain the schematic perspective view along pack the method for packed article with respect to the line bending packing shown in Figure 1 of valley line and boundary line almost parallel; (a) of Fig. 2 and (a) of Fig. 3 are the single-piece block diagrams that is used to explain packed state, and (b) of Fig. 2 and (b) of Fig. 3 are respectively the block diagrams of dogleg section of packing of (a) that has amplified (a) and Fig. 3 of Fig. 2.

As shown in Figure 1, the packing 1 of this embodiment are through periphery stitching of the laminar cloth material 11,11 of a pair of face-off etc. is linked pouch.In a pair of cloth material 11 (bag), be provided at predetermined intervals the connecting part 12,12 of the round shape (island) that links this a pair of cloth material 11 ...

In addition, cloth material 11 utilizes the individual layer woven cloth to form usually, but also can adopt multi-layer braided cloth as required.Weaving method about woven cloth has no particular limits, and plain weave, tiltedly known weaving method such as knits and gets final product.In addition, the eye of knitting of cloth material 11 must be the degree that the foaming of thermoplastic resin particle 20 stated after making can dissipation, the air-tightness that pressure gas can pass through when preferably having the foaming of thermoplastic resin particle of after filling, stating 20.

And, between the cloth material 11 that surrounds by 4 adjacent connecting parts 12, being formed with internal space S, this internal space S forms a plurality of according to the quantity of connecting part 12.In addition, each internal space S forms at 2 connecting parts 12, is communicated with respectively with 4 adjacent internal space S between 12.

In each internal space S, be filled with foaming of thermoplastic resin particle 20, form filling part 13.Like this, on four jiaos of filling part 13, form connecting part 12.And the filling part 13 that is filled with foaming of thermoplastic resin particle 20 becomes the part of heaving of packing 1, and the connecting part 12 that links cloth material 11,11 becomes the concave portion of packing 1.

Here, it is the spherical foaming of thermoplastic resin particle of 0.1～4.0mm that the foaming of thermoplastic resin particle 20 that is filled can use mean grain size.In addition, preferably, the expansion ratio of foaming of thermoplastic resin particle 20 is 20～60 times.Mean grain size is if discontented 0.1mm then easily from the dissipation of cloth material, then is difficult at filling part 13, moves between 13 if surpass 4.0mm.

As the raw MAT'L of foaming of thermoplastic resin particle 20, can use polystyrene resin, polyolefin-based resins (for example polypropylene-based resin, polyethylene-based resin), polyester based resin (for example polyethylene terephthalate, PLA), polycarbonate-based resin etc.Above-mentioned raw MAT'L can use compound (mixing, polymerization etc.) thing of resin monomer, different resins.In addition, also can come as above-mentioned foaming of thermoplastic resin particle through the expanded particle that mixes various combination.

In addition, when the loading of the foaming of thermoplastic resin particle 20 that will be filled in each internal space S is made as roughly the same degree, at each filling part 13, become the valley line 15 of concave between 13.In addition, be filled in the filling rate of the foaming of thermoplastic resin particle 20 of each internal space S, can form valley line 15 through adjustment.

Like this,, therefore utilize the load that acts on filling part 13, can make foaming of thermoplastic resin particle 20 move to any internal space S of its 4 filling parts 13 on every side owing to being connected between its internal space S, the S.

And; The outline line 18 that links 4 boundary lines 16 and 4 valley lines 15 and obtain be shaped as roughly octagon; These 4 boundary lines 16 are at filling part 13 and be disposed between 4 connecting parts 12 around this filling part 13 (specifically; The quarter turn line of the periphery of 1 connecting part), these 4 valley lines 15 are formed between filling part 13 and 4 filling parts 13 adjacent to this filling part 13.That is, outline line 18 becomes and alternately links the outline line that each boundary line 16 obtains with each valley line 15.

The result; Such shown in the (a) and (b) of Fig. 2, when desiring the line 15a of edge and carry out bending, because a plurality of valley lines 15 are on the same straight line with a plurality of valley lines 15 almost parallels of packing 1; Therefore each valley line 15 caves in into wire, can be with respect to packed article W bending packing 1A easily.

On the other hand; Such shown in the (a) and (b) of Fig. 3; When desiring along with respect to the line 16a of boundary line 16 almost parallels between filling part 13 and the connecting part 12, promptly with respect to valley line 15 during with the line 16a bending packing 1A of 45 ° of intersections roughly; Because filling part 13 heaves under the effect of bending power, and outline line 18 be shaped as roughly octagon, so the part 13a that heaves of filling part 13 gets into the concave portion 12a that is formed by connecting part 12 easily.Thus, can be with respect to packed article W bending packing 1 easily.Particularly, because the shape that makes this outline line, is therefore heaved part 13a near octagon becomes and get into concave portion 12a more easily.

And, in order further to improve along the bending property of the packing 1 of the boundary line 16 between filling part 13 and the connecting part 12 (being line 16a) bending, relation below the packing 1 of this embodiment satisfy.Specifically, shown in Fig. 1 (c),, satisfy the relation of 0.25≤D/L≤0.4 when the diameter of connecting part 12 is made as center-to-center distance between the inscribed circle of D, adjacent connecting part 12 when being made as L.In addition, in this embodiment because connecting part 12 is the circle shape, thus the periphery of connecting part 12 with in be connected to the periphery of connecting part 12 inscribed circle overlap.When shape satisfies this relation, can improve the bending property and the resiliency of packing 1.

When this relation during for D/L＜0.25, because the size of connecting part 12 diminishes, therefore when under the state shown in the (a) and (b) of Fig. 3, packing, the part 13a that heaves of filling part 13 becomes and is difficult to get into the concave portion 12a of connecting part 12.On the other hand, when this relation during for D/L＞0.4, the size of connecting part 12 becomes excessive, can not obtain good resiliency.

And, when the thickness of filling part 13 when satisfying this relation is made as t, satisfy the relation of 0.25≤t/L≤1 through making filling part 13, can further improve bending property and resiliency the two.But,,, therefore can not obtain good resiliency because the thickness of filling part is insufficient when this relation during for t/L＜0.25.On the other hand, when this scope was t/L＞1, when under the state shown in the (a) and (b) of Fig. 3, packing, the part 13a that heaves of filling part 13 excessively heaved when bending, and becoming is difficult to get into the concave portion 12a of connecting part 12.

Like this; Even desire along the line 15a parallel with valley line 15, or with the situation of arbitrary line bending packing 1 of the line 16a of boundary line 16 almost parallels under; The bending property of packing 1 is good, no matter packed article W can both easily wrapped up and pack to its wrap direction how.In addition, even complex-shaped packed article W also can easily wrap up and pack.

Below, the manufacturing approach of packing 1 is described based on Fig. 4.Fig. 4 is the skeleton diagram that is used to explain the manufacturing approach of packing shown in Figure 1, (a) is the birds-eye view of the packing (bag) before filling thermoplastic resin's expanded particle, (b) is the figure that is used to explain the method for filling thermoplastic resin's expanded particle.

At first, as shown in Figure 4, prepare to be formed with the bag 10 of filling mouth 19, this filling mouth 19 is used for filling thermoplastic resin's expanded particle 20.Bag 10 is used to form the crust of packing 1, is like lower bag body: to link periphery 10a and equally spaced to link the mode of connecting part 12, sew up 2 cloth materials 11 or work out 2 cloth materials simultaneously, thus the integrated bag that forms.

Then, shown in Fig. 4 (b), metal pipeline cylindraceous (pipe) 30 is from filling in mouthful inside of 19 insertion bags 10.Specifically, make the top ends of pipeline 30 arrive the position, deep of bag 10.Because the bag before filling thermoplastic resin's expanded particle can become any form,, also can easily arrive position, deep even therefore pipeline 30 is a linearity.

Afterwards, on one side extract a foaming of thermoplastic resin particle from the position, deep of bag 10 out to filling mouthful 19 sides, filling thermoplastic resin's expanded particle 20 on one side.Through filling thermoplastic resin's expanded particle 20, the quilting shape that bag 10 is become have predetermined thickness.Afterwards, sew up filling mouth 19.After the stitching, fill mouthfuls 19 bag inside of turning back, 10a sews up along periphery, afterwards, carries out edging, can obtain packing 1 thus.

Fig. 5 is the scheme drawing of packing 1A of the 2nd embodiment of the utility model, (a) is the block diagram of packing, (b) is the birds-eye view of the packing before filling thermoplastic resin's expanded particle.The difference of the 2nd embodiment and the 1st embodiment is the shape of connecting part 12A.Thereby, to the identical Reference numeral of other part marks, and detailed.

In the 2nd embodiment, connecting part 12A becomes rectangle (rhombus).In addition, in order further to improve along the bending property of the packing 1A of the boundary line 16 between filling part 13 and the connecting part 12A (being line 16a) bending relation below satisfying.

Specifically; Shown in Fig. 5 (a); When the diameter of the inscribed circle 16b of the interior periphery (line that is made up of boundary line 16) that is connected to connecting part 12A is made as the above-mentioned inscribed circle 16b of D, above-mentioned adjacent connecting part 12A, when center-to-center distance between the 16b is made as L, satisfies the relation of 0.25≤D/L≤0.4.

In this embodiment, owing to be connected to the inscribed circle 16b of the periphery of connecting part 12A in having used, therefore form the concave portion of the concave portion roughly the same (perhaps big slightly) that forms with connecting part 12A by the 1st embodiment.Thereby, identical with the 1st embodiment, when shape satisfies this relation, can improve the bending property and the resiliency of packing 1.

And when when the thickness that satisfies this relation while filling part 13 is made as t, filling part 13 satisfies the relation of 0.25≤t/L≤1.Thus, identical with the 1st embodiment, can further improve bending property and resiliency the two.

In addition, connecting part 12A is arranged to rectangle (rhombus), can make the more approaching roughly octagon of outline line 18B thus.Thus, can further improve the bending property of the 16a along the line of packing 1A.Shown in Fig. 5 (b), can use bag 10a to make this packing 1A with the method identical with the 1st embodiment.

[embodiment]

Below based on embodiment the utility model is described.

[embodiment 1]

At first, shown in Fig. 4 (a), prepare the bag of nylon system, this bag is provided with the connecting part that diameter D is the round shape of 10mm, and is formed with the woven cloth of the size of multilayer length 500mm * 500mm.The expanded particle of polystyrene system that with mean grain size is 0.5mm is particle-filled in this bag as foaming of thermoplastic resin, processes packing shown in Figure 1.

In addition, in the present embodiment, process that the diameter D of connecting part is constant to have changed the OC a plurality of bags between the connecting part for 10mm.Specifically; Made packing as follows: when making its surfacing so that expanded particle when in filling part, filling equably; As shown in table 1, the aviation value of the center-to-center distance of each connecting part (center-to-center distance between the hithermost connecting part) is the relation that L satisfies table 1.When the pass of D/L tied up in 0.20～0.40 the scope, the outline line of filling part was octagon roughly, when the pass of D/L ties up in 0.25～0.3 the scope, the outline line of filling part be shaped as roughly octagon.In addition, the average thickness value of filling part is that the relation of t and L is t/L=0.5.

[comparative example 1]

Make packing with embodiment 1 identically.Be that with the difference of embodiment 1 0.15 and 0.45 the mode of being made as with D/L is made packing.In addition,, D/L is equivalent to padded coaming in the past shown in Figure 6 because being 0.15 packing, connecting part big or small less, so the shape of the outline line of filling part is near quadrangle.

< experiment of bending property >

For the bending property of the packing of estimating embodiment 1 and comparative example 1, with 1 bottle of 2L that is injected with water with plastic bottle as packed article, with the packing of embodiment 1 and comparative example 1 it is packed.Specifically, shown in the (a) and (b) of Fig. 3, bending packing and wrap up and packaging plastic bottle are contained in the corrugated case of 100mm * 100mm * 400mm and it as packaging body.The bending property of packing by 5 people groups during to the packing of this moment is estimated.This result shown in the table 1.In addition, the index of the bending property shown in the table 1 is: 1: be difficult to bending; 2: be difficult to bending a little; 3: bending a little easily; 4: bending easily; 5: be very easy to bending, this index is the value after the aviation value with 5 people groups rounds up.

< impact experiment >

Resiliency for the packing of estimating embodiment 1 and comparative example 1 makes above-mentioned packaging body fall from the position of height 1.5m, the depression of the packed article after confirming to fall.The index of the resiliency shown in the table 1 is: ◎: plastic bottle is depression not; Zero: depression is small can to return to original shape though plastic bottle has; *: plastic bottle exists depression not return to original shape.

[table 1]

[result 1 and investigate 1]

As shown in table 1, the bending property and the resiliency of the packing of embodiment 1 are well.In addition, in the packing of comparative example 1, when the relation of D/L is 0.15, be difficult to bending, on the other hand, when the relation of D/L is 0.45, on plastic bottle, produced depression.

So, we can say, like the outline line of embodiment 1 filling part under the octagonal situation roughly, packing can bending, if the relation of D/L is more than 0.25, then the bending property of packing is good.

In addition, though relevant with the experiment condition of impact experiment, we can say if the relation of D/L is that then resiliency is better below 0.40.We can say especially, when in the scope of D/L 0.25～0.30, the outline line of filling part be shaped as roughly octagon, in this case, bending property and resiliency are all better.

Here can learn, though connecting part be shaped as round shape, even connecting part be shaped as shape in addition, as long as when in be connected to the periphery of connecting part the diameter of inscribed circle satisfy the relation of above-mentioned D/L when being made as D, also can access identical effect.

[embodiment 2]

Process bag as follows with embodiment 1 identical ground: the diameter of connecting part is made as 10mm, and smooth expanded particle in the filling-foam particle is so that under its uniform situation, satisfy the relation of table 2; Filling-foam particle in bag, thus packing made.

Then, these packing are carried out bending experiment and impact experiment with embodiment 1 identically.This result shown in the table 2.

[table 2]

D/L	t/L	Bending property	Resiliency
				0.25	0.1	5	○
0.25	0.25	5	◎
				0.25	0.5	4	◎
0.25	0.75	4	◎
				0.25	1.0	4	◎
0.25	1.25	3	◎
				0.4	0.1	5	○
0.4	0.25	5	◎
				0.4	0.5	4	◎
0.4	0.75	4	◎
				0.4	1.0	4	◎
0.4	1.25	3	◎
				0.4	1.5	3	◎

[result 2 and investigate 2]

That kind can be learnt shown in result 2, is prerequisite with the relation that satisfies 0.25≤D/L≤0.4, if satisfy 0.25≤t/L≤1, then can access better bending property and resiliency.

That is, we can say if the relation of t/L is that then resiliency is better more than 0.25.In addition, we can say that then bending property is better if the relation of t/L is below 1.0.And can learn, though connecting part be shaped as round shape, even connecting part be shaped as shape in addition, as long as satisfy the relation of above-mentioned t/L, also can access identical effect.

More than, the several embodiments of the utility model at length has been described, but the utility model is not limited to above-mentioned embodiment, in the scope of the spirit that does not break away from the utility model of putting down in writing in claims, can carry out multiple design modification.

For example; In this embodiment, connecting part is made as round shape or rectangle (rhombus), but needs only roughly bending property and the resiliency of octagon to guarantee packing that be shaped as of outline line; Then being not limited to these shapes, also can be other shapes such as polygon oval, that pentagon is above.

Claims (4)

1. packing; Comprise a plurality of inner spaces and a plurality of filling part; Between the sheeting that is surrounded by 4 adjacent these connecting parts, form this inner space through a plurality of connecting parts that are provided at predetermined intervals island, this connecting part is used to link this sheeting of face-off, and the filling-foam particle forms this filling part in above-mentioned inner space; It is characterized in that

In above-mentioned filling part, to form the mode of valley line at this filling part and between, be filled with above-mentioned expanded particle adjacent to the above-mentioned filling part of this filling part,

The outline line of above-mentioned filling part be shaped as roughly octagon; This outline line is to link boundary line and above-mentioned filling part and outline line adjacent to the above-mentioned valley line between 4 above-mentioned filling parts of this filling part, and this boundary line is the boundary line between this filling part and 4 the above-mentioned connecting parts on every side that are disposed at this filling part.

2. packing according to claim 1 is characterized in that,

When the diameter of the inscribed circle of the interior periphery that is connected to above-mentioned connecting part is made as center-to-center distance between the above-mentioned inscribed circle of D, adjacent above-mentioned connecting part when being made as L, satisfy the relation of 0.25≤D/L≤0.4.

3. packing according to claim 2 is characterized in that,

When the thickness of above-mentioned filling part is made as t, satisfy the relation of 0.25≤t/L≤1.

4. according to each described packing in the claim 1 to 3, it is characterized in that,

Above-mentioned outline line be shaped as roughly octagon.

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